JPS5873531A - Method of labelling net bag made of synthetic resin - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] A label can be rationally attached to the surface of a #4Fi synthetic resin net bag made from zero.
The present invention also relates to an improvement of a highly productive label pasting method that enables simple pasting.

Various techniques are already known for attaching labels to bag bodies, and the main method is to attach labels directly to the sheet surface of the bag using adhesive. Due to the mesh structure of the synthetic resin monofilament fiber net bags that are now being used for shipping, there is a very small adhesive area for attaching labels to them, so it is difficult to attach them to the surface of a regular sheet. Methods such as pasting a label cannot be used.

Various studies have been carried out as a means of attaching labels to net bags of 70,000 yen, and some of them have been put to practical use. As this prior art, method 2.3 has already been disclosed, for example, as seen in Japanese Patent Publication No. 53-199209, a thermoplastic resin film is cut into multiple strips of tape and then heat irradiated to form a molten IIK. There is a technique in which the net salt is placed between the label material and the adhesive is used to bond the label material under pressure. However, with this method, it is difficult to maintain sufficient adhesive function while applying heat to the cut tape-shaped thin film to melt it and interpose it between the net salt and the label material. Labeling cannot be done smoothly. In addition, JP-A-51-91700, JP-A-52-680
In the method disclosed in No. 00, etc., a number of strips of molten resin are attached to the back side of the label material to be attached to the surface of the target net salt while it is being fed out, and after the label is divided by the required IkK, it is placed on a rotating roll. This is a method of attaching a label using a linear molten resin as an adhesive by suctioning and holding it and pressing it against the net salt, but in this method, the molten resin is applied to the -H pel and then pressure bonded. It is difficult to sufficiently maintain the circumferential adhesive function until the label is applied, and therefore, there is a problem that the adhesive property of the label is poor. Furthermore, Il#openf
The method disclosed in IE53-28400 is to first attach a large number of strands of molten synthetic resin to net salt, then supply and place labels one by one on the net salt, and then bond them under pressure. However, the above-mentioned method involves the handling of the molten resin strip that serves as the adhesive, but after the molten resin strip for adhesive is attached to the net and before it is bonded to the label material, the adhesion Im. It is difficult to maintain sufficient performance,
Naturally, it is difficult to attach labels reliably. In short, all of the prior art techniques involve making thin strips of molten thermoplastic resin as an adhesive and adhering them to two pels or net salt, and then overlapping the label and net salt and applying pressure to adhere them. Because the process is carried out after a period of time, even if the synthetic resin is a material with low thermal conductivity, the surface layer will form and harden in the darkness when exposed to the air for a long time, and therefore its adhesive function will deteriorate. As a result, the adhesion effect cannot be fully exerted, resulting in unreliable adhesion, which is considered to be the cause of unreliable labeling.

Therefore, the inventor Fi solves the problem of the conventional technology and when bonding a synthetic resin mesh bag and a label,
The time it takes to attach the molten synthetic resin thread that will become the adhesive from its injection nozzle in the closest position to the net bag that will be the adhesive part, and then stack the label on top of it and apply pressure. The method for shortening the
5-50923), but even with this method, the distance for attaching a large number of molten synthetic resin threads to the top surface of the net bag to be glued is inevitably long, and the temperature is different from that in winter. If it is low, the pressure adhesion of the label will be somewhat inhibited by the film formed on the surface of the molten synthetic resin thread, and as a result, a sufficient adhesion effect may still not be obtained.

In order to solve certain problems, Suekan FJI has improved the adhesive supply method and made it more rational. It is an object of the present invention to provide a method for attaching labels to synthetic resin net bags that is practical and can further improve work efficiency.

In the present invention, a supporting stand board is provided with an attachment/detachment mechanism that allows the target net bag to be automatically inserted into or removed from the bag, which has external dimensions that can accommodate the entirety of the bag, at a required pitch. A large number of pieces are connected in parallel at their base ends with endless chains, and each support plate is moved horizontally at the bottom to raise it to an appropriate height, and then descends from the top downwards in a sloping manner. The bag is circulated in this manner, and the net bag to be affixed is fed to the support base plate by continuously interfering with its movement in the required section from the cross-feeding part to the ascending part of the support base plate, so that self-help attachment is carried out; While the net bag fitted on the receiving and receiving base plate is descending on an incline, the gap between the net bag and the label is removed from the position immediately above and close to the position where the label is supplied to the moving slope of the receiving and receiving base plate. A large number of threads of Kl fused synthetic resin are supplied, and then a pressing force is applied to the label using a pressure roller that also serves as a label supply guide, and the label is immediately attached using the fused synthetic fM1 thread as an adhesive. At the end of pasting, tension is applied to the label to cut it to the required length, and the net bag with two pells pasted is automatically removed from the support base board when the label moves from the diagonal descending section to the horizontal feed. I made it.

By using this method, the molten synthetic resin thread serving as an adhesive is supplied directly below the bonding point between the surface of the net bag to which the label is attached and the back surface of the label from a position close to the bonding point, immediately before the reflection occurs. Since it will be glued with a pressure roller, a! Real adhesion was achieved quickly, and all the problems of the conventional method were solved.

Leaving the present invention behind, ikl will be detailed as follows.

What is shown in FIG. 1 is a schematic diagram of the most primitive labeling device for carrying out one method of zero printing.
41.161, +61 are fixed, and one of the shafts, for example shaft (1), is provided on the main body (described later) and is driven at an appropriate speed by the motive, and each chain wheel is Each chain (7) wrapped endlessly around 141151161 has supporting stands 1 & d (many pieces of 1), each with its longitudinal base so that the desired net bag can be supported along its entire width. The ends are fixed and arranged at required intervals through attachments for continuous circulation.Then, beyond the top, a molten resin serving as an adhesive is applied to the upper part of the section where the support plate (11) descends. Injection molding machine that continuously injects into strips (
The injection nozzle (8) of 8) is directly above the position where the label is attached to the bag, and the V-shape is connected to the moving slope of the upper surface of the support stand # (!1) to which the continuous band (L) of the label is supplied. Opposite protrusions are provided directly above the busy area, close to each other within an allowable range.The continuous band (I) of this synthetic resin film label is
3 to the net bag on the supporting base plate (11), and at the same time pressurize the label. The rollers and the support are arranged so that the support base plate (11) is moved by being pressed between the front and back surfaces by the roller 42.

A label supply mechanism for supplying the continuous band of labels and cutting them into required lengths is disposed at the upper position, and each device except the supporting stand board and its driving chino 17) moves in circulation. Support stand! It is attached in a predetermined state to the main body that stands upright behind the moving part.

Each support stand a (to show an example of a field, the second support stand a) moves in circulation.
It is as shown in the figure, and has an approximately rectangular gold E4 base IM (the top part between the river and the base) that can be inserted into the net bag to which the label is attached (El) with the label opened. A pair of rotatable sheeps provided at both corners (I field t131, a pair of sheeps 041 provided adjacent to the center part of the upper surface of the base end)
141, and guide rail IIJI provided on both ends of the base end.
04 and the base Il in the outer part.
KV belt 11@ so that it protrudes slightly outward from the side edge of l.
An attachment/detachment mechanism with 8 parts, 1 part, and a required dimension disposed closer to the distal end than the proximal end of the base plate, both ends of which are fixed to the upper part of the base plate 1 via spacers 114, with appropriate dimensions raised from the +111-'' plane of the base plate. , and a receiver @ill set up.

The base &, +11 is suitably reinforced at its base end and is mounted on the drive chino (7) in a cantilevered manner on the longitudinal center line by suitable means, so as to move smoothly. The winding V belt of 4 is moved to the outside of the outer circumference of the tip sheep li by a tension pulley Of9 provided via a bracket that can be moved in and out of the base at a position immediately after the sheep Ll:l at the tip. It is designed to extend and move, making it easy to receive the bag (8), and is provided at the center of the base end.
Gears 1119η having the same number of teeth are meshed with each other on the support shafts (14a) and (14b) of the shafts, and friction drive rollers (Ill) are mounted on one shaft (1) with height differences on each support shaft i^.
4a) K, the friction drive roller 04 is connected to the other shaft (14
t+), and one of the rollers comes into contact with the guide rail (2) or i provided on the main body side in a required section during the circular movement, and in the case of Fig. 2, the high position roller The direction in which the net bag (8) is received above the platform head by contact with the guide rail (2) at 26 o'clock (KV pel) l
l#al! Gear 9? ) Due to the meshing of the Dη pair, the synchronized drive # (indicated by the chain arrow) is caused by the contact between the low-position roller roller 4 and the guide rail d, causing the net bag (8) to move away from the top of the table Btta. 11110@ was driven in synchronization. Furthermore, the receiving plate on the stand Btn has the above-mentioned attachment/detachment mechanism 0.
1 belt 0 @ side return stroke part is base 1! +11) It is fixed by spacers at both ends across the upper part of the bag so that it can be moved freely on the bag, and the four corners O- are bent upward and downward without any trouble when taking the bag in and out, as shown in the figure.

To affix a label (υ) to a predetermined position on a net bag (by operating a holding device), a drive device The net bag (8) prepared at the lower front position of the support stand board (to) K1 device that circulates through the bag is inserted into the bag receiving section (the bag opening at the tip between the support stand boards in Shu) as appropriate by the operator's hand. If the dimensions are fitted, the guide rail I!i!IK is driven in accordance with the movement of the receiving side drive roller or the support base plate in the corresponding receiving section,
The V-belt on the base plate (to) runs in the direction of receiving the bag, and due to the frictional force of contact with the inside of the net bag (8) fitted from the outer surface, the base plate + MIK grinder) and the entire bag are It is fitted and installed. After passing through this bag receiving section (4), the net bag (8) is attached after passing through the top and moving to the sloped descending section. As shown in the figure 1111 on the inclined surface, the main body is a continuous band-shaped label band printed with the required dimensions in advance and wrapped around a rotary frame for false support of the stand installed at a position away from the main body of the device. The nine label supply mechanisms installed at the top include the guide roller, feed-out drive roller, pushing roller, tension roller, and tension roller, which supply the label pasting section cy')K in a constant state of tension under normal conditions, and are arranged in the middle. A cutter mechanism that makes perforations for cutting the perforations, and a ninth label band (pinch mechanism) that cuts labels of a required length from the perforated part are provided at appropriate positions in the movement section of the label band. In addition to detecting a pre-printed position detection mark using a detection means such as a photoelectric switch, the injection molding machine A large number of molten resin threads (a) are fed from the injection nozzle (♂) in (3) along the pressurized row MK from the guide row IIK to the net bag (8) on the descending supporting base board. The molten resin is supplied from a position directly adjacent to the intersection point where the two bell bands contact each other, and the molten resin thread (-) is supplied from a position directly adjacent to the label band and the net bag ( 8) The surfaces are superimposed, and the pressurized roller and receiver are attached via the support stand S@, and the molten resin thread (-) is immediately used as an adhesive to attach the label to the surface of the net bag. In short, a large number of molten resin threads are supplied directly to the position where the label contacts the surface of the net bag, and the champions are pressed together by a pressure roller to create an adhesive effect, and the surface of the molten resin threads hardens. This allows the adhesive to be firmly attached by sandwiching it in place without giving it time to do so.

According to the method of the present invention, low-melting point molten resin is thread-trapped at a predetermined position of the circular mesh bag held on the support board during the gluing process, and the injection nozzle is used to prevent interference with other parts. When feeding the labels close to each other without causing the label to come into contact with the net bag, the label is fed directly to the intersection where the label and the net bag come into contact, and the pressure roller immediately presses the label to minimize the time it is exposed to the outside air. It is designed to enhance the adhesion effect and also increase the label application speed to ensure reliable label application.

In addition, with respect to the pinching force between the net bag and the label due to the pressure roller and the receiving plate at 0 o'clock, the lower surface of the base plate is auxiliary supported by the roller support, so there is no problem. . In addition, the labels φ) that are made in conjunction are perforated at the required length position by the cutter mechanism during movement.
Just before the perforation reaches the contact point between the pressure roller and the pinch roller, a detector such as a photoelectric switch is used to detect the gap between adjacent base plates that occurs in the moving part of the circulating support base plate. A pinch mechanism that detects the moving distance and sends the detection signal to the appropriate position in the hanging section of the label band
For example, if you send it to a solenoid and energize it for a short time, then temporarily stop the unrolled label strip (I3) by holding it on both sides,
The part that is being glued at the previously made perforation is glued onto the net bag (8) via a pressure roller, so cut it and attach it to the net bag (8) as a label piece of the required length. It is attached with adhesive. Then, while the molten resin thread passes through the label sticking section, the connection between it and the adjacent mesh bag is automatically severed.

When the supporting stand board ■ that supports the net bag that has finished labeling has reached the end of the downward slope, it enters the bag removal section, and is moved to the bag removal side by the guide rail i provided at that part. The ore roller o4 is driven by the movement of the support plate, and the belt moves in the opposite direction to the receiving direction, and the label) (le
The inner edge of the net bag (8) that is in contact with the outer side surface of the belt is fed out by the frictional force with the side surface of the belt, and the label is removed from the top of the support plate at the position where it moves to the horizontally moving part of the support plate. Stick-on net bags can be taken off.Therefore, they can be rationally organized by placing them in a position such as a pedestal or the end of a conveyor to make it easier to dispose of the net bags as products. become.

According to the method of the present invention, the method of the present invention improves the method obtained by the prior invention, and the work of attaching film labels to net bags, which was conventionally done by complicated operations, can now be done.
It has become possible to carry out the process easily and with high efficiency, and it has become possible to carry out the process with a minimum number of workers and at a faster speed than with the earlier invention, and it has become possible to further reduce the work cost. It is.

[Brief explanation of drawings]

The drawings show a specific example of an apparatus for carrying out the method of the present invention, and FIG. 1 is an overall schematic diagram, and FIG. 2 is a perspective view showing a support base plate, and also shows the manner in which the net bag is attached and detached. FIG. 3 is a plan view of the label pasting part, and FIG. 4 is a plan view of the net bag to which two pels are pasted. 11)...Drive shaft, It) 1m)...Shaft, +4)
Is> 18)...chain wheel, 17)...driving ceno, (8)...injection molding machine, (9)...main body, shout...
・Base plate, 1ll)--base, am--attachment and removal mechanism, as (141aJ oi--sheets, GE...
V-belt, aη...gear, a4...drive roller,
(I... catch plate, @i... guide rail, -...
[fl roller, -...Cut mechanism, -...Pinch mechanism, -...Pressure roller, O...Receive roller, (S)
...Net bag, (6)...Label, φ...Label band,
(a)... Molten resin thread.

Claims (1)

[Claims] 1. At the base end, a large number of supporting base plates are installed at the required pitch and have external dimensions that can accommodate almost the entire target net bag, and are equipped with an attachment/detachment mechanism that allows the net bag to be automatically inserted into or removed from the bag. They are connected in parallel with endless chains at the lower part, and each support plate is moved horizontally at the lower part, raised to an appropriate height, and then lowered from the upper part downward in an inclined manner to circulate. In the required section from the horizontal feeding part to the ascending part of the support base plate, the net bag to be attached is automatically attached by being linked to the movement and being supplied to the support base plate, and the net bag is automatically attached to the support base plate. While the net bag is descending on an incline, a thread of molten synthetic resin is inserted between the net bag and the label from a position directly above and in the vicinity of the position where the label comes into contact with the moving slope of the support base plate. A large number of strips are directly supplied, and then a pressing force is applied to the label using a pressure roller reeded inside the label supply dormitory, and the label is immediately attached using the molten synthetic resin thread as an adhesive, and the label is attached at the attachment end position. Made of synthetic resin, the bag is cut to the required length by applying tension, and the net bag with two pels attached is automatically removed from the support base board during the transition from the diagonal descending section to the horizontal feed. How to attach labels to net bags.